hauppauge PCI cards /dev/video0 no longer showing up after hard disk replacement

I had a working MythTV DVR a couple years ago. The hard disk failed, so it sat in the corner for a couple years. Recently, I pulled it out, put a new hard disk in it, and installed the latest Mythubuntu (14.04 amd 64) on it. However, the video cards no longer seems to show up in /dev anymore (used to be /dev/video0 and /dev/video1).

I can see the cards using lspci -v:

01:09.0 Multimedia video controller: Internext Compression Inc Device 0014 (rev 01)
    Subsystem: Hauppauge computer works Inc. Device 0001
    Flags: medium devsel
    Memory at 44000000 (32-bit, prefetchable) [disabled] [size=64M]
    Capabilities: [44] Power Management version 0

01:0e.0 Multimedia video controller: Internext Compression Inc Device 0014 (rev 01)
    Subsystem: Hauppauge computer works Inc. Device 0801
    Flags: medium devsel
    Memory at 48000000 (32-bit, prefetchable) [disabled] [size=64M]
    Capabilities: [44] Power Management version 0

I think one of the cards is a Hauupauge PVR 150 from comparing it to images I have googled. I bought the DVR online from a small-time outfit that is since gone. The cards are crammed in to an Asus Pundit barebone chassis, so I am not to keen on pulling the cards out unless I really have to.

I tried modprobeing various modules, including ivtv. The only thing that shows up in dmesg output is:

[ 5934.162401] ivtv: Start initialization, version 1.4.3
[ 5934.162489] ivtv: End initialization

I am assuming this means that the drivers aren't recognizing the card?

I was wondering if anyone has any idea what I might need to do in order to get the system to get the system to create the device files. Do I need new drivers? Something else?